Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 8 de 8
Filtrar
1.
BMC Genomics ; 23(1): 274, 2022 Apr 07.
Artículo en Inglés | MEDLINE | ID: mdl-35392800

RESUMEN

BACKGROUND: Cutaneous squamous cell carcinoma (cSCC) is the second most common type of skin cancer, the prognosis for patients with metastatic cSCC remains relatively poor. Thus, there is an urgent need to identify new diagnostic, prognostic, and therapeutic targets and pathways in cSCC. RESULTS: It detected a total of 37,507 lncRNA probes and 32,825 mRNA probes and found 3593 differentially expressed lncRNAs and 3236 differentially expressed mRNAs. It has been found that mRNAs ACY3, NR1D1, MZB1 has co-expression relationship with six lncRNAs, GXYLT1P3, LINC00348, LOC101928131, A-33-p3340852, A-21-p0003442 and LOC644838. CONCLUSIONS: The aim of this study is to identify cSCC-specific lncRNAs and indicated that six unstudied lncRNAs may serve an important role in endoplasmic reticulum stress apoptosis, autophagy and the progression of cSCC by modulating ACY3, NR1D1 and MZB1.


Asunto(s)
Carcinoma de Células Escamosas , ARN Largo no Codificante , Neoplasias Cutáneas , Biomarcadores , Biomarcadores de Tumor/genética , Carcinoma de Células Escamosas/patología , Perfilación de la Expresión Génica , Regulación Neoplásica de la Expresión Génica , Redes Reguladoras de Genes , Humanos , Pronóstico , ARN Largo no Codificante/genética , ARN Largo no Codificante/metabolismo , ARN Mensajero/genética , ARN Mensajero/metabolismo , Neoplasias Cutáneas/genética
2.
Dermatol Ther ; 35(1): e15189, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34729875

RESUMEN

Giant condyloma acuminatum (GCA) which is also called Buschke-Lowenstein tumor. It is a rare tumor of the anorectal area and external genitalia associated with low-risk HPV types 6 or 11. GCA has a high-rate of recurrence (66%) and malignant transformation (56%). The clinical features of GCA are progression of exophytic, ulcerative, and cauliflower-shaped tumors, it has significant dimensions and may undergo malignant transformation such as squamous cell carcinoma or cervical cancer. It is difficult to treat GCA, and it may be impossible for GCA to self-healing, but we herein report a rare case of a 19-year-old female with self-healing GCA.


Asunto(s)
Neoplasias del Ano , Tumor de Buschke-Lowenstein , Carcinoma de Células Escamosas , Condiloma Acuminado , Adulto , Neoplasias del Ano/patología , Tumor de Buschke-Lowenstein/diagnóstico , Tumor de Buschke-Lowenstein/patología , Carcinoma de Células Escamosas/patología , Transformación Celular Neoplásica , Condiloma Acuminado/diagnóstico , Condiloma Acuminado/cirugía , Femenino , Humanos , Adulto Joven
3.
Am J Hum Genet ; 108(12): 2336-2353, 2021 12 02.
Artículo en Inglés | MEDLINE | ID: mdl-34767756

RESUMEN

Knockoff-based methods have become increasingly popular due to their enhanced power for locus discovery and their ability to prioritize putative causal variants in a genome-wide analysis. However, because of the substantial computational cost for generating knockoffs, existing knockoff approaches cannot analyze millions of rare genetic variants in biobank-scale whole-genome sequencing and whole-genome imputed datasets. We propose a scalable knockoff-based method for the analysis of common and rare variants across the genome, KnockoffScreen-AL, that is applicable to biobank-scale studies with hundreds of thousands of samples and millions of genetic variants. The application of KnockoffScreen-AL to the analysis of Alzheimer disease (AD) in 388,051 WG-imputed samples from the UK Biobank resulted in 31 significant loci, including 14 loci that are missed by conventional association tests on these data. We perform replication studies in an independent meta-analysis of clinically diagnosed AD with 94,437 samples, and additionally leverage single-cell RNA-sequencing data with 143,793 single-nucleus transcriptomes from 17 control subjects and AD-affected individuals, and proteomics data from 735 control subjects and affected indviduals with AD and related disorders to validate the genes at these significant loci. These multi-omics analyses show that 79.1% of the proximal genes at these loci and 76.2% of the genes at loci identified only by KnockoffScreen-AL exhibit at least suggestive signal (p < 0.05) in the scRNA-seq or proteomics analyses. We highlight a potentially causal gene in AD progression, EGFR, that shows significant differences in expression and protein levels between AD-affected individuals and healthy control subjects.


Asunto(s)
Enfermedad de Alzheimer/genética , Bancos de Muestras Biológicas , Técnicas de Inactivación de Genes , Genes erbB-1 , Variación Genética , Estudio de Asociación del Genoma Completo , Humanos , RNA-Seq , Transcriptoma , Secuenciación Completa del Genoma
4.
Environ Res ; 195: 110872, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33581094

RESUMEN

BACKGROUND: Whereas it is plausible that unconventional natural gas development (UNGD) may adversely affect cardiovascular health, little is currently known. We investigate whether UNGD is associated with acute myocardial infarction (AMI). METHODS: In this observational study leveraging the natural experiment generated by New York's ban on hydraulic fracturing, we analyzed the relationship between age- and sex-specific county-level AMI hospitalization and mortality rates and three UNGD drilling measures. This longitudinal panel analysis compares Pennsylvania and New York counties on the Marcellus Shale observed over 2005-2014 (N = 2840 county-year-quarters). RESULTS: A hundred cumulative wells is associated with 0.26 more hospitalizations per 10,000 males 45-54y.o. (95% CI 0.07,0.46), 0.40 more hospitalizations per 10,000 males 65-74y.o. (95% CI 0.09,0.71), 0.47 more hospitalizations per 10,000 females 65-74y.o. (95% CI 0.18,0.77) and 1.11 more hospitalizations per 10,000 females 75y.o.+ (95% CI 0.39,1.82), translating into 1.4-2.8% increases. One additional well per square mile is associated with 2.63 more hospitalizations per 10,000 males 45-54y.o. (95% CI 0.67,4.59) and 9.7 hospitalizations per 10,000 females 75y.o.+ (95% CI 1.92,17.42), 25.8% and 24.2% increases, respectively. As for mortality rates, a hundred cumulative wells is associated with an increase of 0.09 deaths per 10,000 males 45-54y.o. (95% CI 0.02,0.16), a 5.3% increase. CONCLUSIONS: Cumulative UNGD is associated with increased AMI hospitalization rates among middle-aged men, older men and older women as well as with increased AMI mortality among middle-aged men. Our findings lend support for increased awareness about cardiovascular risks of UNGD and scaled-up AMI prevention as well as suggest that bans on hydraulic fracturing can be protective for public health.


Asunto(s)
Infarto del Miocardio , Gas Natural , Anciano , Exposición a Riesgos Ambientales , Femenino , Hospitalización , Humanos , Masculino , Persona de Mediana Edad , Infarto del Miocardio/epidemiología , New York/epidemiología , Pennsylvania/epidemiología
5.
CNS Oncol ; 9(4): CNS64, 2020 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-33112686

RESUMEN

Aims: To investigate wait time (WT) for chemoradiation and survival in post-op high-grade glioma (HGG) patients admitted to inpatient rehabilitation compared with those discharged home. Materials & methods: A total of 291 HGG patients (14.4% grade III and 84.9% grade IV) were included in this retrospective cohort study. Patients were grouped by disposition following surgery. Results: Median length of stay was longer in acute inpatient rehabilitation facility (AIRF) patients (10d) compared with patients discharged home (3d). AIRF admission was associated with higher odds of excessive treatment delay. Median survival for AIRF patients less than for patients discharged home (42.9 vs 72.71 weeks). WT was not associated with survival even after adjusting for prognostic factors. Conclusion: HGG patients discharged to rehabilitation facilities have longer length of stay, longer WT and shorter survival compared with patients discharged home.


Asunto(s)
Neoplasias Encefálicas/terapia , Glioma/terapia , Tiempo de Tratamiento , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias Encefálicas/diagnóstico por imagen , Neoplasias Encefálicas/mortalidad , Neoplasias Encefálicas/rehabilitación , Femenino , Glioma/diagnóstico por imagen , Glioma/mortalidad , Glioma/rehabilitación , Humanos , Tiempo de Internación , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Adulto Joven
6.
JACC Heart Fail ; 7(8): 651-661, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-31302044

RESUMEN

OBJECTIVES: The aim of this study was to determine if plasma eicosapentaenoic acid (EPA) abundance (%EPA) is associated with reduced hazard for primary heart failure (HF) events in the MESA (Multi-Ethnic Study of Atherosclerosis) trial. BACKGROUND: Clinical trials suggest that omega-3 polyunsaturated fatty acids (ω3 PUFAs) prevent sudden death in coronary heart disease and HF, but this is controversial. In mice, the authors demonstrated that the ω3 PUFA EPA prevents contractile dysfunction and fibrosis in an HF model, but whether this extends to humans is unclear. METHODS: In the MESA cohort, the authors tested if plasma phospholipid EPA predicts primary HF incidence, including HF with reduced ejection fraction (EF) (EF <45%) and HF with preserved EF (EF ≥45%) using Cox proportional hazards modeling. RESULTS: A total of 6,562 participants 45 to 84 years of age had EPA measured at baseline (1,794 black, 794 Chinese, 1,442 Hispanic, and 2,532 white; 52% women). Over a median follow-up period of 13.0 years, 292 HF events occurred: 128 HF with reduced EF, 110 HF with preserved EF, and 54 with unknown EF status. %EPA in HF-free participants was 0.76% (0.75% to 0.77%) but was lower in participants with HF at 0.69% (0.64% to 0.74%) (p = 0.005). Log %EPA was associated with lower HF incidence (hazard ratio: 0.73 [95% confidence interval: 0.60 to 0.91] per log-unit difference in %EPA; p = 0.001). Adjusting for age, sex, race, body mass index, smoking, diabetes mellitus, blood pressure, lipids and lipid-lowering drugs, albuminuria, and the lead fatty acid for each cluster did not change this relationship. Sensitivity analyses showed no dependence on HF type. CONCLUSIONS: Higher plasma EPA was significantly associated with reduced risk for HF, with both reduced and preserved EF. (Multi-Ethnic Study of Atherosclerosis [MESA]; NCT00005487).


Asunto(s)
Ácido Eicosapentaenoico/sangre , Insuficiencia Cardíaca/epidemiología , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Ácidos Grasos Omega-3 , Femenino , Insuficiencia Cardíaca/sangre , Insuficiencia Cardíaca/fisiopatología , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Modelos de Riesgos Proporcionales , Volumen Sistólico
7.
Front Oncol ; 9: 186, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30972296

RESUMEN

Background: The purpose of this study is to provide a critical review of current evidence for the impact of time to initiation of chemoradiation on overall survival in patients with newly diagnosed high-grade gliomas treated with radiation and concurrent temozolomide chemotherapy. Methods: A literature search was conducted using PubMed/MEDLINE and EMBASE databases. Studies were included if they provided separate analysis for patients treated with current standard of care: radiation and concurrent temozolomide. Bias assessment was performed for each included study using the Newcastle-Ottawa Assessment Scale, with Karnofsky Performance Status (KPS) and extent of resection used for comparability. Results: The initial search yielded 575 citations. Based on the inclusion/exclusion criteria, a total of 10 retrospective cohort studies were included in this review for a total of 30,298 patients. Of these, one study described an indirect relationship between time to initiation of treatment and overall survival. One study found decreased survival only with patients with significantly longer time to treatment. Four studies found no significant effect of time to treatment on overall survival. The four remaining studies found that patients with moderate time to initiation had the best overall survival. Conclusion: This review provides evidence that moderate time to initiation of chemoradiotherapy in patients with high-grade gliomas does not lead to a significant decrease in overall survival, though the effect of significant delays in treatment initiation remains unclear.

8.
Zhong Nan Da Xue Xue Bao Yi Xue Ban ; 39(6): 598-604, 2014 Jun.
Artículo en Chino | MEDLINE | ID: mdl-25011964

RESUMEN

OBJECTIVE: To determine the effect of soy isoflavones on cell proliferation and the transcription levels of follicle-stimulating hormone receptor (FSHR), inhibin α (INHα), INHßB, androgen binding protein (ABP), transferrin (Tf) and vimentin in testis sertoli cells in SD rats. METHODS: Sertoli cells were cultured in vitro, exposed to daidzein at 0.03, 0.3, 3, and 30 µmol/L and genistein at 0.05, 0.5, 5 and 50 µmol/L, respectively. MTT was used to detect the proliferation of sertoli cells. Real-time PCR was used to detect the relative mRNA expressions of FSHR, INHα, INHßB, ABP, Tf and vimentin. RESULTS: Compared with control groups, cell proliferation and the relative mRNA expression levels of INHßB and ABP in the treated cells showed no significant alternation. The INHα mRNA expression levels were increased in 0.3 and 3 µmol/L Dai and 0.05 µmol/L Gen, while the mRNA expression levels of FSHR were downregulated in 30 µmol/L Dai and Gen at all concentrations. Tf mRNA expression levels were downregulated in 30 µmol/L Dai and 5 µmol/L and 50 µmol/L Gen, and the mRNA expression levels of vimentin were downregulated in 3 and 30 µmol/L Dai and 50 µmol/L Gen. CONCLUSION: Soy Isoflavones may have potential detrimental effect on the male reproductive system, as they may impact the function of sertoli cells by downregulating the transcription levels of some important proteins.


Asunto(s)
Isoflavonas/efectos adversos , Células de Sertoli/efectos de los fármacos , Testículo/efectos de los fármacos , Proteína de Unión a Andrógenos/metabolismo , Animales , Subunidades beta de Inhibinas/metabolismo , Inhibinas/metabolismo , Masculino , ARN Mensajero , Ratas , Ratas Sprague-Dawley , Receptores de HFE/metabolismo , Glycine max/química , Testículo/citología , Transferrina/metabolismo
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA